Originally Posted by Salomon Ponte
Originally Posted by Johnny Larmond
I can't comment on the AEM EMS, but just a couple things here.
Lets go through a list of things with a simple Y/N answer.
Plugs ok? (condition, gap, etc)
Wires on correct cylinders?
Injectors properly compensated for?
I have no idea why you'd be pushing 50psi of fuel pressure unless something is messed with the wiring on the AFPR. You should be running ~30psi at idle with 20inhg of vac. (judging from my numbers)
Boost leaks?

Interesting issue though.

I know when I was running link, I forgot to simulate narrow band operation which caused a no start. Would peg at 10 for AFR, run for 5 seconds then putt and die.


AFPR doesn't have wiring wink

I recall reading a post somewhere on Link Forums from the Link guys saying that your idle fuel pressure should be approximately equal to this formula --> IFP = BFP (= 43.5) - (Idle Vacuum/2).

So if vacuum is 20, IFP should be no higher than around 33.5, possibly lower.

Have you made sure all your settings look good? Make a list of what items have been changed since you took her off the road and which, if any, of those items would possibly affect fuel pressure, AFR, etc. Have you changed your EMS files whatsoever?


Lines. I was thinking about lines. Fixed now tongue

'97 GSX - DD and running strong
'99 GSX Spyder - Running strong
'99 GS - zzzz.

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